INTERIM REPORT ON TRINITY PARKWAY DESIGN CHARRETTEdallascityhall.com/government/Council...
Transcript of INTERIM REPORT ON TRINITY PARKWAY DESIGN CHARRETTEdallascityhall.com/government/Council...
INTERIM REPORT ON TRINITY PARKWAY DESIGN CHARRETTE
Transportation and Trinity River Project Committee
Monday, October 26, 2015
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CHARGE
• Trinity Parkway Design Charrette Report identified
20 guiding principles (Ideas) that were intended to:
create a more gentle road that includes an experience
more compatible with the natural resources and
recreational opportunity within the Dallas Floodway
• Following presentation of the Report, the City
Council directed the City Manager to: determine if
the 20 Ideas included in the report can be achieved
within the context of current Record of Decisions and
approved Environmental Impact Statements
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PREPARATION
• Local, regional, state and federal partners
(NTTA, TxDOT, NCTCOG, USACE and FHWA):
met during the summer to review the Ideas
identified in the Report
• Disciplines required: identified for additional
expertise on the technical team
• Local and national experts: identified by the City
and joined the technical team through contracts
with the City and NTTA (and later The Trinity Trust
for interface with the Park)
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WORK TO DATE
• The technical team has:
Met with Dream Team representatives to better
understand the Ideas included in the Report (vision,
technical scope and compatibility with current federal
approvals were all discussed)
Categorized ideas based on degree of difficulty (with
regard to implementing within existing regulatory approvals
and partnerships)
Made significant progress toward incorporating Ideas
into design to allow for meaningful policy decisions
which may impact feasibility, schedule and costs (and
will continue into December, with a final report out in
January)
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OVERVIEW OF 20 IDEAS –
CONFIRMATIONS
Confirmation Ideas: have previously been identified in either the Trinity Parkway or Dallas Floodway Project
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Description DoableMore
Discussion ChallengingExpertise Needed
Design Needed Comment
Confirmation 1
Roadway and land benchelevations, corridor and end connections to highway system X Confirmed
Confirmation 2
Pedestrian links across Parkway, 15 links over and under approximately 1/4 mile spacing X Confirmed
Confirmation 3Top of levee pedestrian and bikeway paths X X Confirmed
Confirmation 4
Service roads/bikeway/ pedestrian paths around Parkway X X Confirmed
OVERVIEW 20 IDEAS –
VARIATIONSVariation Ideas: present an opportunity to create a different
experience in a phased approach
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Description DoableMore
Discussion Challenging Expertise NeededDesign
Needed Comment
Variation 1
Only build a 4 lane road now-fit the lanes (narrower lanes/grass shoulders) meandering in existing corridor X X
Design being refined
Variation 2
Build fewer ramps; 2 sets of ramps accessing inner City for foreseeable future (1 on/off pair at N end near medical district and 1 on/off pair at S end at Cedar Crest Bridge) X
Design being refined
Variation 3Ban trucks except for emergencies X
Potential policy decision
OVERVIEW 20 IDEAS –
VARIATIONS(CONTINUED)
Variation Ideas: present an opportunity to create a different
experience in a phased approach
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Description DoableMore
Discussion Challenging Expertise NeededDesign
Needed Comment
Variation 4
Add a u-turn option within the Parkway corridor at mid-point X X
Design options being refined
Variation 5
Allow on street parking along the Parkway on weekends, slow periods and/or special events X
Potential policy decision
OVERVIEW 20 IDEAS –
DESIGN REFINEMENTSDesign Refinement Ideas: are modifications to existing designs that
may be completed in a phased approach
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Description DoableMore
Discussion ChallengingExpertise Needed
Design Needed Comment
Design Refinement 1
Meander Parkway within approved road corridor so future road sections can be finished now as pull off parking areas on both sides of road for park access and scenic overviews X X
Design being refined
Design Refinement 2
Design refinement of landscapeconfiguration to add a consistent linear tree pattern (20'-40' centers) along the Parkway for character and beauty making a "tree lined" Parkway X X X
Design of options underway
Design Refinement 3
Design refinement of landscape configuration to add character, interest and strong ecological strategy at land bench edges and outfall areas X X
Design of options underway
OVERVIEW 20 IDEAS –
DESIGN REFINEMENTS(CONTINUED)
Design Refinement Ideas: are modifications to existing designs that
may be completed in a phased approach
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Description DoableMore
Discussion ChallengingExpertise Needed
Design Needed Comment
Design Refinement 4
Design refinement of flood protection barrier with landscape, art, wall treatments and hillocks or berms to eliminate blank walls and secure more pervasive views of park (character, interest, ecological strategy) X
Design of options underway, with modeling on-going
Design Refinement 5
Design refinement to exploit 5 "Wow" views over Parkway X X X
Design being refined
Design Refinement 6
Allow toll free park use from the Parkway X
Potential policy decision
Design Refinement 7
Local transit stops to enhance user access over Parkway (ex: streetcar stop on Houston Bridge, additional stops on Riverfront) X
Design of options underway
OVERVIEW 20 IDEAS –
DEVELOPMENT STRATEGIESDevelopment Strategy Ideas: are considerations that address how
the improvements to the Trinity Corridor can influence neighborhoods
and commercial areas outside the levees or vice versa
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Description DoableMore
Discussion ChallengingExpertise Needed
Design Needed Comment
Development Strategy 1
For Reunion/Commerce and Mixmaster District, to catalyze development as close to park as possible X
Being addressed aspart of Park planning effort, to include an econ. dev. strategy
Development Strategy 2
For Design District, to facilitate incremental development w/regular and attractive pedestrian connections X
Design of options underway, will continue with Park planning
Development Strategy 3
South Side District, to facilitate enhancing "sump" water bodies as primary amenities (this is less about Parkway and more about Park improvements) X
Being addressed aspart of Park planning effort, to include an econ. dev. strategy
OVERVIEW 20 IDEAS –
DEVELOPMENT STRATEGIES(CONTINUED)
Development Strategy Ideas: are considerations that address
how the improvements to the Trinity Corridor can influence
neighborhoods and commercial areas outside the levees or vice
versa
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Description DoableMore
Discussion ChallengingExpertise Needed
Design Needed Comment
Development Strategy 4
For districts N and S ends of Parkway (before joining existing highway system) build over or under elevations within alignment for development (spurs private development that augments neighborhoods) X
Design of options underway, will continue with Park planning
Team has been refining the roadway configuration
to determine meander opportunities, parking
options, lane widths/roadway sections,
interchange variations, and u-turn alternatives
• Clarification was received from Dream Team that
intention was to meander within existing “road corridor”
or the areas originally intended to have concrete for
lanes and shoulders
• Parking pull out locations have begun to be identified
with further refinement to include potential access to
existing and planned floodway park features
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Working product in draft form representing snapshot of
meandering, parking opportunities and transition from
structure to bench
Hydraulic modeling to review geomorphology and
conditions for low flow, normal flow and flooding flow
levels given design options for various design features
• Information assists with ecological strategy for both
Parkway and Park
• Ensures that all US Army Corps of Engineers and City
regulatory requirements for flood conveyance and post
flooding challenges are part of the strategy
Design of plantings, alternatives to ensuring 100
year flood protection, and connections/access
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• The Parkway is progressing ahead of the review of
the Park, but technical team is closely reviewing
interface and potential impacts to the Park
• October – December: refinement and design of
typical sections will be completed
• Will include preliminary reviews at a very high level among
all partners to better inform policy choices that may occur
• January: presentation of recommended refinements
and design
• Recommended action will be requested prior to formal
review by regulatory agencies
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• Park design will not challenge Parkway Charrette ideas
• Design will not start from scratch – the Balanced Vision
Plan will be used as a foundation
• The end product and design effort will move project to
implementation sooner, rather than later
• Public input will influence design
• Park planning will include an economic development
strategy
• Design will place a priority on flood management/
control
• Design will be sustainable (maintenance and financing)
• Design will honor the nature of the river and ecology
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• Before: collection and aggregation of existing public
input to date, as well as use of social media and
events adjacent to the river to gather more input and
raise awareness (through January)
• During: mid-charrette open house in late January,
early February for public to view and comment on
early charrette design work
• After: extensive public engagement through
Summer, 2016 (planning underway)
Note: outreach and engagement will be conducted in multiple
languages through a variety of communications.
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New
QUESTIONS/COMMENTS
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APPENDIX
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Parkway Public Meetings/Forums
In Coordination with the Mayor’s Office,
Councilmembers and Various Chambers of Commerce
and Neighborhood Associations, public meetings held
between May and July, 2015
Input Received
13 Public Meetings/Forums
Online Comment Opportunity
Over 200 written and electronic comment cards
received
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Parkway Technical Committee Pre-planning meetings with federal, state and local
partners conducted in June – August, 2015
Monthly work sessions and meetings planned through December, 2015
Team includes City staff and:
Federal, state and local partners
North Central Texas Council of Governments
North Texas Tollway Authority
Texas Department of Transportation
Federal Highway Administration
US Army Corps of Engineers
Local and national professionals
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Local Professional Expertise
• Brent Brown, [bc], Planning & Urban Design
• Larry Good, Good Fulton Farrell, Planning & Urban Design
• Elissa Hoagland Izmailyan, HR&A, Economic Development
• Keith Manoy, Transportation Planning
• Alex Martinez, Gresham, Smith & Partners, Hydrology
• Luis Salcedo, Salcedo Engineering, Civil Engineering
• Halff & Associates, Hydrology & Roadway Design
• HNTB Engineering, Geotech & Civil Engineering
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• John Alschuler, HR&A, Economic Development
• Larry Beasley, Beasley & Associates, Planning & Urban Design
• Zabe Bent, Nelson Nygaard, Mobility Planning
• Tim Dekker, Limnotech, Hydrology
• Alex Krieger, NBBJ, Planning & Urban Design
• Alan Mountjoy, NBBJ, Planning & Urban Design
• Liz Silver, MVVA, Landscape Architecture
• Michael Van Valkenburgh, MVVA, Landscape Architecture
• Ladybird Johnson Wildflower Center, Ecology & Landscape Architecture
National Professional Expertise
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Parkway Oversight Committee
City Council Transportation and Trinity River Project
Committee Members
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Advisors to Parkway Technical Committee
Councilmember Sandy Greyson and Jere Thompson
Progressing the Park
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As a result of the Mayor’s fund raising efforts, we have the opportunity to advance planning and design for the Trinity Urban Park
The Park is a “client” for the Parkway and Floodway – we need to ensure a strong interface
Park planning, including how the Park interfaces with the Parkway and surrounding neighborhoods, will be privately sponsored by the Trinity Trust Foundation (made possible by contributions from Deedie and Rusty Rose)
Parkway:
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Anticipated Next Steps (contingent upon final report and funding)
Through Winter, 2017/2018 – Parkway Design
Through Fall, 2018 – Final Approvals and Letting
Through Winter, 2021/2022 – Construction
Park:
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Through Winter, 2016 – Phase I Urban Lakes
Construction
Through Winter, 2016 – Phase I Park Design
Through Winter, 2017 – Final Approvals and Letting
Through Fall, 2018 – Park Construction
Anticipated Next Steps (contingent upon scope and funding)